Eudimorphodon, known as flying reptiles, or pterosaurs, evolved about 70 million years before the first-known birds. Eudimorphodon is the earliest-known, and had very sharp, pointed teeth, probably to help it catch fish.

Stegosaurus is the largest-known plated dinosaur. This herbivore had a very small skull and brain for such a large animal. It also had rows of tall, bony plates along its back. While scientists disagree about their use, they may have helped release body heat.

Apatosaurus, a giant herbivore (plant-eater), was called brontosaurus unit 1978, when scientists reevaluated the skeleton. This giant dinosaur weighed as much as five adult elephants and used its tail for balance.

Allosaurus, a gigantic carnivore (meat-eater), was the largest predator of the Late Jurassic period. Allosaurus had bony, rough ridges above the eye sockets. It fed on large game like the Apatosaurus, and hunted anything it could trap and kill. Allosaurus may also have been scavengers, feeding on dead or dying animals.

Archaeopteryx occupies a special place in evolutionary history â as a link between reptiles and birds. Fossils show it had a wishbone, clawed fingers on its wings, a long tail with a bony core (similar to that of small dinosaurs) and feather-like structures on the wings and tail.

This gigantic carnivore (meat-eater)was the largest predator of the Late Jurassic period. Allosaurus had bony, rough ridges above the eye sockets. It fed on large game like the Apatosaurus, and hunted anything it could trap and kill. Allosaurus may also have been scavengers, feeding on dead or dying animals

The largest-known plated dinosaur, this herbivore had a very small skull and brain for such a large animal. It also had rows of tall, bony plates running along its back. While scientists disagree about their use, they may have helped release body heat.

1.The largest-known plated dinosaur, this herbivore had a very small skull and brain for such a large animal. It also had rows of tall, bony plates running along its back. While scientists disagree about their use, they may have helped release body heat. 2.POTASH 3.Frank Cecala unknown NJ 973-586-5815 fcecala@starledger.com

1.Allosaurus This gigantic carnivore (meat-eater)was the largest predator of the Late Jurassic period. Allosaurus had bony, rough ridges above the eye sockets. It fed on large game like the Apatosaurus, and hunted anything it could trap and kill. Allosaurus may also have been scavengers, feeding on dead or dying animals. 2.POTASH 3.Frank Cecala unknown NJ 973-392-5815 fcecala@starledger.com